Apparatus for corrugating paper.



PATENTED JUNE 7, 1904.

J. T. FERRES. APPARATUS FOR GORRUGATING PAPER.

APPLICATION FILED MAB. 6. 1903.

5 SHEETS-SHEET 1- R0 MODEL.

Jada/afar PATENTBD JUNE 7, 1904.

J. T. FBRRES. APPARATUS FOR GORRUGATING PAPER.

APPLICATION rum) In. 6, 1903.

' 6 sums-slum 2.

H0 MODEL.

PATENTBD JUNE 7, 1904.

J. T. PERRES. APPARATUS FOR GORRUGATING PAPER.

APPLIUATION FILED MAR. 6, 1903.

5 SHEETS-SHEET 3.

N0 MODEL.

.Iilll III/IIII/A Illlllllllllllllll [III/III] W a a No. 762,033.PATENTED JUNE 7, 1904. J. T. PERRES.

APPARATUS FOR GORRUGATING PAPER.

" APPLICATION m-nn MAB. e, 1903..

N0 HODBL. 5 SHEETS-SHEET 4.

I UNITED STATES Patented June 7, 1904.

PATENT OFFICE.

APPARATUS FOR CORRUGATING PAPER.

SPECIFICATION forming part of Letters Patent No. 762,033, dated June *7,1904.

Application filed March 6, 1903.

To (LZZ whom it may concern.-

Be it known that I, JEFFREY T. FERREs, a citizen of the United States,residing at Anderson, in the county of Madison and State of Indiana,have invented certain new and useful Apparatus for Oorrugating Paper, ofwhich the following is a description, reference being had to theaccompanying drawings, forming part of this specification.

My invention has for its object the production of a simple and efiicientapparatus for corrugating paper longitudinally of the strip asdistinguished from the ordinary operation of corrugating it transverselyof the strip; and it consists in new constructions, combinations, andmodes of operation of the parts making up my novel apparatus,which willbe hereinafter explained and set forth in my claims.

In the accompanying drawings, Figure 1 is a top plan view of a machineor apparatus embodying my invention; Fig. 2, a side elevation thereof;Fig. 3, a middle longitudinal vertical section; Fig. 3, a detail viewshowing one of the chains to which the traveling apron or paper-carrieris secured; Fig. 4, an end elevation of the front end of the machinewith part of the lagging forming the endless traveling belt or apronbroken away to expose parts within it; Fig. 5, a View of the rear end ofthe machine; Fig. 6, a bottom plan "iew of the corrugating-former; Fig.7 a detail in elevation of the front end of the same; Fig. 8, a top planview of a piece of the strip of paper, showing the action of thecorrugating apparatus upon it; and Fig. 9 an enlarged view of suchstrip, showing the beginning of the corrugations.

The primary elements of the machine are a longitudinally-corrugatedformer A, Fig. 1, and a cooperating longitudinally-corrugated travelingapron or paper-carrier B, by means of which the strip of paper to becorrugated is moved longitudinally through the machine and by thecooperation of which, with the former A, said strip is longitudinallycorrugated.

The former A (or the corrugated working face thereof at least) is oftapering form, as shown in Figs. 1 and 6,while the longitudinal SerialNo. 146,472. (No model.)

corrugations thereof run parallel with its longitudinal middle line,with the result that the series of corrugations extending forward fromits rear end run out, so to speak, one by one along the taperingopposite edges of the former, Figs. 6 and 7, until at the extremeforward end of the latter only a few corrugations remainin the presentinstance but a single one.'

The longitudinal corrugations of the traveling apron or carrier B runparallel with the corrugations in the former A and intermesh with them,with the result that under the cooperation of the former A and carrier Bthe paper is drawn between them by the momment of the carrier. A singlecorrugation is first formed at the middle of the paper as the latterpasses between the extreme forward end or point of the former and thecarrier beneath, Fig. 9, and then successive corrugations upon eitherside of the longitudinal middle one are gradually formed as the carriermoves the paper on rearward beneath the former and passes it into thesuccessive corrugations I along the tapering edges of the latter. Thestrip of paper is thus gradually drawn inward toward its middle line andnarrowed by the formation of the successive corrugations as it passesrearward through the machine, Fig. 8, until at its delivery from therear end of the machine it may be contracted to the width of the workingsurface of the wide rear end of' the former (or to a less degree,depending upon the depth to which the corrugations in the former A areset to mesh in the corrugations of the carrier B) and issue from themachine as a completely corrugated continuous strip of paper with thecorrugations extending lengthwise of it.

Thetraveling apron or carrier B is composed of metal bars or lagsextending transversely of the machine and fitting snugly against eachother side by side. and secured at their opposite ends to endless chainspassing over supporting-wheels at the front and rear ends of themachine, the pair of wheels at the rear end of the machine being drivenby suitable power to draw the upper side of the endless apron rearwardthrough the ma- .chine.

The former A is heated by steam-coils C, passing transversely throughand cast in it, while the carrier B is heated by a heaterplate D,suitably supported in the framework of the machine some distance belowthe former A and over the upper surface of which the under side of thecarrier B travels in its passage from the rear end to the forward end ofthe machine. This heater-plate D is also heated by steam-coils E,passingtransversely through and cast'in it. coils may of course be arrangedlongitudinally of both the former and the heater-plate instead oftransversely.

The corrugations in the transverse bars or lags making up the endlesscarrier B do not extend entirely to the end of such lags; but a smoothand slightly-raised surface is left at the opposite ends of the lags,Figs. 1, 4, and 5, which surfaces travel upon the upper side of theheater-plate D in the passage of the under side of the carrier over saidheaterplate and support the corrugations out of contact therewith.

The upperside of the carrier Bis supported in its travel rearwardthrough the machine beneath the former A upon tracks or ways F F, Figs.4 and 5, which tracks consist of longitudinal bars supported beneath thecarrier upon transverse bars Gr, secured at their opposite ends to theframework of the machine, Fig. 1, the sets of bars F and G in thepresent instance, and preferably, being cast together in one integralframe or spider, composed of the two longitudinal bars F and the severaltransverse bars G.

The cross bars or lags of the carrier B do not rest directly upon theways F F, but are provided upon their under side with transverse ribs F,which constitute longitudinal bearing-surfaces coincident with thetracks or ways F F and immediately above the latter. Intcrposed betweenthese two bearing-surfaces is a roller-chain H, one at either side ofthe middle line of the machine, Figs. 3, 4, and 5, serving to relievefriction in the travel of the carrier B over the ways F.

At either side of the machine, outside of the roller-bearing chains H,are located the sprocket-chains 1, to which the outer ends of the lagsof the carrier B are secured and by which said carrier is moved throughthe machine. These sprocket-chains I pass at their forward ends aroundsprocket-wheels J, secured upon the opposite ends of the shaft K,

journaled upon bearings upon the framework of the machine, and at theirrear ends around the sprocket-wheels L, fast upon the shaft M, which hassecured to one of its ends outside the framework of the machine agear N,which meshes with a pinion 0, fast upon the driving-shaft P of themachine, which shaft has secured upon it a drivingpulley Q, over whichthe driving-belt passes, Figs. 1 and 5.

The particular construction of the sprocket- The steam-- chains I whichI have employed in practice is shown in Fig 3", where itwill be seenthat the alternate links of the chain consist of rectangular plates orblocks a, each having a screw-hole at its center. The ends of the lagsof the carrier B rests upon these blocks a and are secured thereto byscrews 6, fitting in countersunk holes in the lags, Fig. 4, leaving theupper surfaces of the ends of the lags smooth and unobstructed, so thatthey may travel freely over the upper surface of the heater-plate in theforward travel of the under side of .the carrier B, as before explained.

The formerA is ad justably supported above the carrier B by a screw-rodR at its forward end and a pair of such rods R R at its rear end,saidrods being provided with hand-wheels at their upper ends forturning themand the forward rod being passed through and supported by a cross-bar ofthe framework and the rear rods by a cross-bar S thereof.

The rear end of the former Aabuts against a stop-bar T, extending acrossand secured to .the oppoite sides of the framework, Fig. 1,

the immediate contact of the rear end of the former being with the innerend of a setscrew U, passed forward through the middle bar T, by meansof which the exact position of the stopping-abutment may be adjusted asdesired.

Provision is made for vertical adjustment of the supporting tracks orways FF of the carrier B, and consequently of the carrier itself, bymeans of the adjusting-screws V, passed through the opposite ends of thecross-bars Gr, which carry the tracks F and rest at their lower endsupon the side bars of. the framework. (Shown in Figs. 1, 2, and 4.)

The roll of paper W which is to be corrugated is mounted in a suitablesupport at the forward end of the machine, Figs. 1, 2, and 3, and is ledthence upward and rearward over a guide or straightening bar X andthence downward and rearward through a curved or concave guideway Y,whence it passes onward beneath the forward pointed end of the former Abetween the latter and the carrier B. The purpose of the curved guidewayY is to facilitate the initial corrugation of the middle portion of thestrip by delivering it to the corrugating-surfaces beneath the pointedforward end of the former A in concavo-convex or trough-shape form incross-section. The guideway may be constructed in any suitable manner,in the present instance consisting of a lower curved plate of sheetmetal 0 and an upper narrower and correspondingly-curved piece of sheetmetal (Z, secured atits opposite ends above the rear portion of thepiece 0 and forming a curved guideway between them, Figs. 1 and 4.

The straightening-bar X, over which the strip of paper passes,issupported at its opposite ends by side arms 0, bolted at their rearends to the framework, and by standards f,

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In its passage from the supply-roll IV to thestraightening-bar X thesupply of paper is subjected to a steam-blast at Z for the purpose ofmoistening it, and thereby facilitating the action of the corrugatingapparatus upon it.

The operation of the apparatus is as follows: The end of the strip ofpaper to be corrugated is led from the roll W upward and rearward overthe bar X, through the curved guideway Y, and inserted between theforward end of the former A and corrugated carrier B, the end of theformer being elevated by the screw R to permit such insertion and thenlowered again to bring its corrugations into meshwith those upon thecarrier B and grip the paper between them. The apparatus is thenstarted, and the carrier B draws the paper rearward through the machinebetween the intermeshing corrugations of itself and the former A. At theextreme forward end or point of the former A there is but a singledepending rib or corrugation, Figs. 6 and 7, which extends rearwardlyalong the middle line of the former. This rib or corrugation seats in asingle groove in the upper side of the carrier B, so that at the firstentrance of the paper between the carrier and the forward end of theformer a single depressed curve or corrugation is formed along themiddle line of the strip of paper, Fig. 9. As the'paper is carried onrearward beneath the gradually widening former another depending rib orcorrugation of the former on each side of its middle one will come intomesh with the coincident grooves or corrugations in the carrier B andform two additional depressed corrugations in the strip of paper. onrearward beneath the former additional depending ribs or corrugationsupon the under side of the latter and at each side of its middle linewill come into mesh with the corresponding curves in the carrier B anddraw down additional corrugations in the paper, with the result that thestrip of paper will be gradually contracted in width as the successivecorrugations are formed in it in its rearward passage through themachine, so that when it reaches and emerges from the rear end of theformer it will be contracted and completely corrugated from side toside. In Fig. 8 I have illustrated a section of a strip of paper ofsufiicient length to show the action of the corrugating devices upon itfrom its first entrance between the pointed front end of the former andthe corrugated carrier to its delivery in completely corrugated form atthe rear end of the machine, from which view the manner in which thecorrugating devices gradually act upon the strip of paper and contractAs the paper moves its width as it passes through the machine will bereadily understood.

The paper is heated and dried and its corrugations become firmly set byits passage between the heated former A and heated carrier B, and as itemerges from the rear end of the machine it may be cut into pieces ofdesired length for any purpose.

The forward end of each of the longitudinal ribs or dependingcorrugations of the formerA is rounded oif and sloped forward, as shownin Fig. 7, to facilitate initial engagement of the paper with such ribsor corrugations and the corresponding grooves or cor-- rugations in thecarrier beneath it,'and thus avoid crumpling, tearing, or othermutilation of the paper which would interfere with its propercorrugation.

To relieve friction between the paper and the under side of the former Aafter the middle corrugations in the paper have become formed and set, Iprefer to cut away some of the middle corrugations of the former at therear portion of the latter, leaving an open V- shaped recess, as shownat m in Fig. 6. The cutting away of these corrugations correspondinglyreduces the friction between the paper and the former at such point andin like proportion increases the preponderating frictional grip of thecarrier upon the paper, which en ables the carrier to more readily drawpaper through the machine against the resistance offered to it by itsfrictional engagement with the under side of the former.

1. In a machine for corrugating paper, the steam-heated former A havingthe longitudinal corrugations gradually increasingin number from itsfront end toward its rear end; substantially as described.

2. In a machine for corrugating paper, the former A provided withthelongitudinal corrugations gradually increasing in number from itsfront toward its rear end, and having the steam-coils C cast in it;substantially as described.

3. In a machine for corrugating paper, the former A having thelongitudinal corrugations gradually increasing in number from its fronttoward its rear end, and provided with the open recess 0 at the middleof its rear portion; substantially as described.

t. In a machine for corrugating paper, the former A having thelongitudinal corrugations gradually increasing in number from its fronttoward its rear end, in combination with the longitudinally-corrugatedcarrier'B composed of transverse bars or lags suitably hinged together;substantially as described.

5. Ina machine for corrugating paper, the combination of the former A,the carrier B, and the heater-plate D over which the under side of thecarrier B travels and by which it is heated during its forward movement;substantially as described.

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6. In a machine for corrugating paper, the combination of the former Ahaving the steamcoils C cast in it, the carrier B, and the heaterplate Dhaving the steam-coils E cast in it and serving as a support and heaterfor the under side of the carrier B in its forward passage through themachine; substantially as described.

7. In a machine for corrugating paper, the combination of the former A,the carrier B having the longitudinal bearing-ribs F upon its underside, the tracks or ways F F suitably supported beneath and coincidentwith the ribs F F, and the roller-bearing chains H H interposed betweenthe tracks F F and the bearing-surfaces 1*" F of the carrier B;substantially as described.

8. In a machine for corrugating paper, the combination of the former A,the carrier B, the integral frame or spider composed of the transversesupporting-bars G and the longitudinal tracks or ways F F, and therollerbearing chains H H interposed between said tracks and the carrier;substantially as de scribed.

9. In amachine for corrugating paper, the combination of the former Aand the carrier B, the latter composed of the transverse bars or lagsand the endless chains 1, said chains including alternate linksconsisting of blocks or plates (4 a to which the ends of the lags aresecured by countersunk screws 6; substantially as described.

10. In a machine for corrugatin g paper, the combination of the former Aand carrier B, with means for adjusting the former A to ward and fromthe carrier N; substantially as described.

11. In a machine for corru gating paper, the combination of the former Aand carrier B, with means for adjusting the carrier B toward and fromthe former A; substantially as described.

12. In amachine for corrugating paper, the former A, adj ustablysupported by screw-rods R R R, in combination With the carrier B;substantially as described.

13. In a machine for corrugating paper the combination of the former A,adjustably supported by the screw-rods R R R, the stopping-bar T at therear end of the former, and the carrier B; substantially as described.

14L. In a machine for corrugating paper, the combination of the former Aadj ustably supported by the screw-rods R R It, in combination with thecarrier B adjustably supported beneath the former A by the transversebars G and screws V; substantially as described.

15. In a machine for corrugating paper, the combination of the former A,carrier B and curved guide Y; substantially as described.

16. In a machine for corrugating paper the combination of the former A,carrier B, curved guide Y and steam-blast Z; substantially as described.

17. In a machine for corrugating paper the combination of the former A,carrier B, curved guide Y, straightening -bar X and steam-blast Z;substantially as described.

18. In a machine for corrugating paper, the combination of thesupporting-roll for the paper with the curved guideway Y for directingthe strips of paper into the machine in curved cross-sectional form;substantially as described.

19. In a machine for corrugating paper, the former A having thelongitudinal corrugations gradually increasing in number from its frontend toward its rear end, and the front end of each depending corrugationbeing sloped or rounded off; as and for the purposes set forth.

J EFFREY T. FERRES. I/Vitnesses:

Mrs. C. N. SMITH, W. P. BENTON.

